Discussions By Condition: I cannot get a diagnosis.

Random Allergic Reactions?

I'm a 16 year old girl. In August I started having allergic reactions where I get terrible stomach cramps, nausea, vomiting, diarrhea, and an itchy rash usually starting around my ears and descending over most of my body.I went for allergy testing and was tested for pretty much every food product you could think of, and everything came up negative. However, the allergist thought it was likely that it was an MSG sensitivity, as each time I had a reaction I could have had a lot of MSG and the symptoms of my reaction fit.

So, I adjusted my diet and got rid of as many sources of glutamate as I possibly could. I didn't have any allergic reactions for quite a while. However, I've started having reactions again - when it seems that I couldn't have had any MSG whatsoever. I'm going to go talk to a doctor again asap, but does anyone have any ideas? Does it sound like I have additional allergies, or to something that I didn't suspect? Or some sort of metabolic issue? Or what?